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Old 12th March 2017, 09:01 PM   #681
Dali
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Hi Dali,

Just wanted to say a thanks for your great thread once again. I cleaned my oil separator and noticed a 2/3 MPG increase compared to before, and also used your guide to do the 'stage 1' Besian VANOS upgrade. Along with new plugs/oil my car now feels very healthy indeed. Much punchier and rev more freely. Just waiting to get stage 2 Beisan fitted and valve clearances now...

Thanks again, hope you're still enjoying the M2! I saw my first one on the road yesterday and they certainly look the part.
Cheers djon!

Glad to hear of your positive results with the upgrades, I've just noticed the thread ticker has surpassed 100k views

Yes, very happy with the M2 thanks!

I sorted out the mirrors a few weeks ago and have other things planned for later in the year.






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Old 10th October 2017, 02:51 PM   #682
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Just bumping this thread as I'd forgotten how good it is.

So much info on here, I've just lost a hours re-reading it for the umpteenth time!

Dali is the man.
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Old 10th October 2017, 07:29 PM   #683
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Just bumping this thread as I'd forgotten how good it is.

So much info on here, I've just lost a hours re-reading it for the umpteenth time!

Dali is the man.

Haha thank you sir

Hope your E46 is going well.

I think mine has a different owner now, though unsure if the new buyer was a cutter. Would be good to see the car again.



I've had the M2 for about a year now, very happy with it. Engine is impressive but can't quite match the induction wind of the S54, the exhaust makes up for it though.

I took some pics last week:











^ A couple of updates to the interior such as alcantara trim and instrument binacle cover. More to come.


Just realised, it's a damn good job I didn't upload these DIY pics onto photobucket!
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Old 11th October 2017, 06:31 AM   #684
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M2 looking good, nice pics
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Old 11th October 2017, 11:58 AM   #685
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Mm mm mm lovin the M2 mate... Verry nice !!!
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Old 12th October 2017, 08:45 PM   #686
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Epic read. Will be very helpful for many owners.

M2 a worthy replacement.
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Old 12th October 2017, 10:00 PM   #687
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great thread.
Just cleaned my oil seperator as a result
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Old 11th December 2017, 02:43 PM   #688
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Another great looking thread. SUBSCRIBED !



.
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Tim 'Moff' Nicholas @ TMS Motorsport
Email us : [email protected]
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TMS Motorsport - Parts for Motorsport and Tuning - Online Shop
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Old 14th August 2018, 11:23 PM   #689
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Originally Posted by Dali View Post
Electric Cooling Fan Retrofit


Last week, on my drive home from work I had some issues with my AC. Of all possible days this had to happen on the hottest

The cabin was hot as I entered the car, as expected. Turned on the air con and drove off. 15 minutes later I noticed the cabin was not being cooled enough. AC with the snowflake was activated but there was no cold air, just warm

The next day, during my commute into work I turned on the AC again with snowflake and cold air was coming how the vent, strange

As I reached traffic, my eye caught the coolant gauge. It was sitting slightly higher than normal. As the traffic got denser I noticed the gauge started 'running' towards the 2nd dot.

If I carried on with my commute no doubt it would of hit the red. Past experience from owners with coolant issues virtually always states to never let the car overheat as the repair costs spiral! ... And so I did a U-turn and headed back home in clear air. The coolant temp quickly went down due to the rushing air. I parked the car at home and didn't drive it again.

A quick look on the diags revealed this:





... The electric fan sits in-front of the radiator and condenser, it provides additional cooling and is controlled by the DME. Most of the time it activated when AC is used... so this explains why I was having AC issues a few days ago.

After some in-depth reading on the Internet, it seems the number one culprit is the FSU (Final Stage) control unit which sits inside the fan shroud. Having checked the fuse (which was ok) I decided to enquire with the dealer about getting a replacement fan unit...



Going to the dealer to find out the cost of a new fan unit...







No Thanks!!







I managed to solve it using new parts, much cheaper - here's how...


The E46 Pusher Fan






Pusher Fan Replacement

















































































Extra Info

Bumper Removal DIY:
http://www.m3forum.net/m3forum/showthread.php?t=247135 - Thanks Obi
http://www.bmw-planet.com/lib/BMW_e4...Bumper_DIY.pdf - Thanks DaytonaViolet

E46 non-m3 pusher fan
The fan setup on the e46 non-m3 cars is a little different, some have puller fans so you need to be careful here. I'll include the part numbers:
P/N: 64546922554 or 64546988913


Going for new fan parts or old?
This is subjective. If you really want to make a huge saving you could buy used parts. Having gone through this I'm glad I used newer parts as its likely they'll last longer and this is not something I want to DIY anytime soon - spent all weekend on it!


In Conclusion

Although my issue is fixed I'm not stopping here. My car has 70k miles, and so I'm going to the following replaced soon:
  • Coolant Temp Sensor (hose near fan)
  • Thermostat
  • Water pump
  • New clutch for mechanical fan



Hi I have followed exactly this, new fsu new motor, new water sensor temp and still nothing.

I have bc cable and related software how did u get that analysis and error showing?

Thank you
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Old 15th August 2018, 11:54 AM   #690
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Originally Posted by favetta82 View Post
Hi I have followed exactly this, new fsu new motor, new water sensor temp and still nothing.

I have bc cable and related software how did u get that analysis and error showing?

Thank you
Hi

From what I remember, the software is called P.A Soft 1.4 - look for a copy on ebay with cable. You may need to modify the supplied OBD2 adapter (soldering pins) - I covered that in this thread.

I assume with the car warm, engine running you have switched the AC on (coldest setting) and then checked to see if the fan is spinning (It can take up to 30 seconds).

If after that, the fan still isn't switching on the only other thing I can recommend is to check the PWM wire. This is the smallest wire (green and black). It comes from the ECU - check to condition of the wire up from the ECU all the way to the fan connector.

If you are sure that is ok, then the next step would be to wire up an oscilloscope to the PWM wire (because it's an analogue signal).

When you attempt to test the fan again this will allow you to verify the signal is being sent out by the ECU (to switch the fan on and set rpm).

I don't know the frequency/amplitude of the PWM signal, so you may need help from a friend/electrician to setup the oscilloscope.


Hope that helps

Ps. I need to get back into an ///M!

Last edited by Dali; 15th August 2018 at 11:56 AM.
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Old 16th August 2018, 06:32 PM   #691
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many thanx for your reply, nice to see you are still giving to the community!

Anyway the PMW wire seems ok, it is actually hard to see as it is all taped together with the other cables....

i plugged a multimeter and there is definitely signal coming from the red/blue wire and the brown wire, both engine/ac on and engine off/ac off.

now if i check the PMW wire with the multimeter i get something and it does change in terms of value, but clearly, as you said not true if i am checking this correctly....

Either the motor/FSU i got sold they are faulty (struggle to beleive as they really did look brand new) or really I do not know anymore what to think...
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